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  <h1 class="topictitle1">备份任务失败，错误详情提示客户端执行挂载失败</h1>
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    <h4 class="sectiontitle">现象描述</h4>
    <p>备份虚拟机任务执行失败，错误详情中提示客户端执行挂载失败。</p>
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    <h4 class="sectiontitle">可能原因</h4>
    <p>Redhat7.6版本内核问题导致。</p>
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    <h4 class="sectiontitle">处理步骤</h4>
    <ol>
     <li><span>使用PuTTY工具以<strong id="foc_gud_0076__zh-cn_topic_0000002164790296_zh-cn_topic_0000002200031305_b916917212">root</strong>账户登录待安装客户端的主机。</span></li>
     <li><span>执行以下命令，查看客户端所在主机操作系统内核版本是否为<strong>3.10.0-957.5.1.el7</strong>及以上。</span><p></p><p><strong>cat /etc/redhat-release</strong></p> <p><strong>uname -r</strong></p>
      <ul>
       <li>是，联系技术支持协助处理。</li>
       <li>否，请继续执行<a href="#foc_gud_0076__li2908144216479">3</a>。</li>
      </ul> <p></p></li>
     <li id="foc_gud_0076__li2908144216479"><a name="foc_gud_0076__li2908144216479"></a><a name="li2908144216479"></a><span>请自行下载<strong>3.10.0-957.5.1.el7</strong>及以上版本的Redhat内核包，并将下载到的内核包上传至客户端所在主机。</span></li>
     <li><span>进入安装包所在目录后，执行以下命令安装内核包。</span><p></p><p><strong>rpm -ivh</strong> <em>内核包名</em></p> <p>示例：</p> <pre class="screen">rpm -ivh kernel-3.10.0-957.5.1.el7.x86_64.rpm</pre> <p></p></li>
     <li><span>重启操作系统后，再次执行以下命令查看内核版本是否为新安装的版本。</span><p></p><p><strong>uname -r</strong></p> <p></p></li>
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     <strong>父主题：</strong> <a href="foc_gud_0070.html">常见问题</a>
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